The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Oct. 29, 2012
Applicant:
Nissan Motor Co., Ltd., Kanagawa, JP;
Inventors:
Assignee:
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/38 (2006.01); C22C 13/00 (2006.01); C22C 18/00 (2006.01); H01M 4/42 (2006.01); H01M 10/052 (2010.01); C22C 28/00 (2006.01); C22C 30/04 (2006.01); C22C 30/06 (2006.01);
U.S. Cl.
CPC ...
H01M 4/387 (2013.01); C22C 13/00 (2013.01); C22C 18/00 (2013.01); C22C 28/00 (2013.01); C22C 30/04 (2013.01); C22C 30/06 (2013.01); H01M 4/386 (2013.01); H01M 4/42 (2013.01); H01M 10/052 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A negative electrode active material for an electric device includes an alloy containing Si in a range from 23% to 64% exclusive, Sn in a range from 4% to 58% inclusive, Zn in a range from 0% to 65% exclusive, and inevitable impurities as a residue. The negative electrode active material can be obtained with a multi DC magnetron sputtering apparatus by use of, for example, silicon, tin and zinc as targets. An electric device such as a lithium ion secondary battery employing the negative electrode active material can improve cycle life of the battery and ensure a high capacity and high cycle durability.